Explain the phases of growth in plants.
(N/A) The period of growth is generally divided into three phases: meristematic,elongation,and maturation.
$1$. Meristematic Phase: The cells in the root and shoot apices are constantly dividing. These cells are rich in protoplasm and possess large,conspicuous nuclei. Their cell walls are primary,thin,and cellulosic with abundant plasmodesmatal connections.
$2$. Elongation Phase: Cells proximal to the meristematic zone represent the phase of elongation. This phase is characterized by increased vacuolation,cell enlargement,and new cell wall deposition.
$3$. Maturation Phase: Further away from the apex,cells reach their maximal size in terms of wall thickening and protoplasmic modifications. This is the maturation phase,where cells differentiate to perform specific functions.
$1$. Meristematic Phase: The cells in the root and shoot apices are constantly dividing. These cells are rich in protoplasm and possess large,conspicuous nuclei. Their cell walls are primary,thin,and cellulosic with abundant plasmodesmatal connections.
$2$. Elongation Phase: Cells proximal to the meristematic zone represent the phase of elongation. This phase is characterized by increased vacuolation,cell enlargement,and new cell wall deposition.
$3$. Maturation Phase: Further away from the apex,cells reach their maximal size in terms of wall thickening and protoplasmic modifications. This is the maturation phase,where cells differentiate to perform specific functions.
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ii. For proper growth of plant,optimum temperature ranges between $15^{\circ} C-25^{\circ} C$.
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i. Microelements and macroelements are required for the proper growth of the plant.
ii. For proper growth of plant,optimum temperature ranges between $15^{\circ} C-25^{\circ} C$.
iii. In the absence of oxygen,the process of respiration and release of energy takes place in all plants.
iv. Gravitational force decides the direction of growth of the shoot and root.
v. Light is essential for the germination of some seeds and photosynthesis.
Given below are two statements about plant growth.
Statement $I$: Curve for arithmetic growth is linear.
Statement $II$: Curve for geometric growth is exponential.
In the light of the above two statements,choose the most appropriate answer from the options given below.
Statement $I$: Curve for arithmetic growth is linear.
Statement $II$: Curve for geometric growth is exponential.
In the light of the above two statements,choose the most appropriate answer from the options given below.
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